T-Sql appears to be evaluating “If” statement even when the condition is not true

Question

I have a T-Sql script where part of this script checks to see if a certain column exists in the a table. If so, I want it to execute a routine... if not, I want it to bypas

Answer 1

Make your statement a string. And if column exists, execute it

IF COL_LENGTH('Database_Name.dbo.Table_Name', 'Column_Name1') IS NOT NULL
BEGIN
    DECLARE @sql VARCHAR(MAX)
    SET @sql = 'UPDATE Table_Name
            SET Column_Name2 = (SELECT Column_Name3 FROM Table_Name2
                WHERE Column_Name4 = ''Some Value'')
            WHERE Column_Name5 IS NULL;

        UPDATE Table_Name
            SET Column_Name6 = Column_Name1
            WHERE Column_Name6 IS NULL;'
     EXEC(@sql)
END